REPORT: Britney Spears’ Ex, Kevin Federline, Accuses Her Of Standing Near Their Sleeping Children With A Knife

Kevin Federline reportedly accused ex-wife Britney Spears of eerily hovering at the doorway near their sleeping children while holding a knife.

Federline’s memoir, “You Thought You Knew,” is slated for release Oct. 21, and makes a serious allegation, according to The New York Times (NYT). In one chapter of his book, Federline unleashed a major accusation against the pop princess in connection with their two sons, Sean and Jayden.

“They would awaken sometimes at night to find her standing silently in the doorway, watching them sleep — ‘Oh, you’re awake?’ — with a knife in her hand. Then she’d turn around and pad off without explanation,” he claimed.

HOLLYWOOD – FEBRUARY 06: Musicians Britney Spears and Kevin Federline arrive at the 2006 Grammy Nominees party with Kanye West, hosted By Verizon Wireless and Rolling Stone Magazine at the Avalon Hollywood, on February 6, 2005 in Hollywood, California. (Photo by Matthew Simmons/Getty Images for Rolling Stone)

Federline continued to express deep concern for Spears in the memoir, sounding the alarm on her well-being, specifically after the conservatorship ended, according to TMZ.

“The truth is, this situation with Britney feels like it’s racing toward something irreversible,” he wrote in his book.

“Something bad is going to happen if things don’t change, and my biggest fear is that our sons will be left holding the pieces,” he said.

Federline claimed that it has “become impossible to pretend everything’s OK” with Britney and, “From where I sit, the clock is ticking, and we’re getting close to the 11th hour.”

Kevin’s memoir details his marriage to Spears and dives into their highly contentious divorce and custody battle.

HOLLYWOOD – JULY 10: Singer Britney Spears (L) and husband Kevin Federline arrive at the Warner Bros. Premiere of Charlie and the Chocolate Factory at the Grauman’s Chinese Theatre on July 10, 2005 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

He claimed that when his boys were young they once said they didn’t want to return to Spears’ residence for multiple reason, fear among them. (RELATED: Kevin Federline Comes Out Of Nowhere To Expose Britney Spears: REPORT)

Federline spoke Monday with the NYT. “I’ve never, ever, once, been against Britney,” he claimed. “I’ve only tried to help my sons have an incredible relationship with their mother. And it’s hard because when I really reflect on everything that’s happened — my kids do not know the woman that I married. And I’ve spent two decades trying to bridge that gap.”

A Spears spokesperson declined to comment Monday to the NYT.